JP2004355621A - Update of dynamic port - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To flexibly support setting of a large number of ports changed over in operation. <P>SOLUTION: A device sharing a resource includes a plurality of groups having common size allowing setting of the resource. The device includes a controller selecting an activated group among the plurality of groups and the common size of the resource of each active group. The controller changes the active group and the common size of the resource of each active group without affecting the operation in the operation of the device. A method for sharing the resource includes a process for selecting the activated group among the plurality of groups and the common size of the resource of each active group by use of the controller of the device, and changes the active group and the common size of the resource of each active group without affecting the operation in the operation of the device by use of the controller. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to sharing resources among a plurality of configurable groups. More particularly, the present invention relates to dynamic port updating, where each port of a plurality of ports has a service, and the service of each port does not affect its operation during operation. Will be corrected.

  Scheduling ASICs that perform switching in a telecommunications network must be able to flexibly support multiple port settings that can be switched during operation. Traditionally, the set of supported port settings was small and constant. Any application that does not fall into such a set was not supported.

  The dynamic port update described here supports any number of ports, no matter how the speeds are mixed, while adding them without affecting the active ports. A means is provided to change the settings of the ports that are added / dropped. In addition to handling unexpected applications, it eliminates the need for a large list of modes and supports a variety of settings.

  The present invention relates to an apparatus for sharing resources. The apparatus includes a plurality of groups in which the number can be set, and each group of the plurality of groups has a settable resource sharing size. The apparatus includes a controller, and the controller selects which group among a plurality of groups to be active and the shared size of the resources that each active group has. During operation of the device, the controller changes the active group and the shared size of the resources of each active group without affecting or stopping the operation of the device.

  The present invention relates to a method for sharing resources. The method includes the step of selecting, using a controller of the device, which group among a plurality of groups of the device is to be activated and the shared size of the resources of each active group. Changing the active group and the shared size of resources of each active group using the controller without affecting the operation of the apparatus or stopping the operation during the operation of the apparatus There is.

  The present invention relates to an apparatus for dynamically updating a port. The apparatus includes a plurality of ports, and each port of the plurality of ports has a service. The apparatus includes a controller, which selects which port of the plurality of ports is active and the service that each active port has. During operation of the device, the controller changes the active port and the service of each active port without affecting or stopping the operation of the device.

  The present invention relates to a method for dynamically updating a port. The method includes a step of selecting, using a controller, which port among a plurality of ports to be active and a service that each active port has. During operation of the node, there is a step of changing the active port and the service of each active port using the controller without affecting the operation of the node or stopping the operation.

  The accompanying drawings illustrate preferred embodiments of the invention and preferred methods of practicing the invention.

  Throughout the figures, the same reference numerals are used for similar or identical parts. Referring to the figures, and in particular to FIG. 1, an apparatus (100) for sharing resources is shown. The device (100) includes a plurality of groups (110) whose number can be set. Each group (110) of the plurality of groups (110) has a shareable resource size that can be set. The device (100) comprises a controller (14), which controller (14) has which group (110) of the plurality of groups (110) to activate and each active group (110). Select the shared size of the resource. During operation of the device (100), the controller (14) can detect the active group (110) and each active group without affecting the operation of the device (100) or stopping the operation. Change the shared size of resource (110).

  The device (100) preferably includes a configuration table (18), which is a group index (115) with a portion of the shared resources that they have for the active group (110). Has a working list (24). The controller (14) is preferably accessible to the table using a head pointer and tail pointer (22) that are changed during operation. When the working list (24) is changed, the controller (14) creates the second list (26) of the group index (115) while maintaining the working list (24), and the second list (26) After the creation, the head pointer and tail pointer (22) are changed to indicate the second list (26), and the second list (26) becomes the working list (24). Group (110) is preferably port (16) and the shared resource is preferably bandwidth.

  The present invention relates to an apparatus (10) for dynamically updating a port. The device (10) comprises a plurality of ports (16). Each port of the plurality of ports (16) has a service. The device (10) comprises a controller (14), which controller (14) activates which port (16) of the plurality of ports (16) is active and each active port (16). Select the service you have. The controller (14), during operation of the device (10), does not affect the operation of the device (10) or stops the operation, and the active port (16) and each active port Change the service of (16).

  The device (10) preferably includes a configuration table (18), which is a working list of port indexes (20) with speeds associated with them for active ports (16). 24). The controller (14) is preferably accessible to the table using a head pointer and tail pointer (22) that are changed during operation. The controller (14) maintains the working list (24) while creating the second list (26) of the port index (20) when the working list (24) is changed. ) Is created, the head pointer and tail pointer (22) are changed to indicate the second list (26), and the second list (26) becomes the working list (24).

  The present invention relates to a method for sharing resources. The method determines which group (110) among a plurality of groups (110) of the device (100) is active, and the shared size of the resources that each active group (110) has, according to the controller (14 ) To select using. While the device (100) is operating, the active group (110) and the resources of each active group (110) are not affected without affecting or stopping the operation of the device (100). There is a step of changing the shared size using the controller (14).

  Preferably, there is a step of creating a configuration table (18), the configuration table (18) for the active group (110), the working list (24) of the group index (115) with the portion of the shared resource that they have. )have. Preferably, there is a step of accessing the table using the head pointer and tail pointer (22). If the working list (24) is changed, after creating the second list (26) of the group index (115) while maintaining the working list (24) and creating the second list (26), Preferably, there is a step of changing the head pointer and tail pointer (22) to indicate the second list (26) and making the second list (26) a working list (24). Group (110) is preferably port (16) and the shared resource is preferably bandwidth.

  The present invention relates to a method for dynamically updating a port. The method includes a step of selecting, using the controller (14), which port (16) of the plurality of ports (16) is to be activated and a service of each active port (16). Yes. During operation of the device (10), without affecting the operation of the device (10) or without stopping the operation, the active port (16) and the service of each active port (16) There is a step of changing the above using the controller (14).

  Preferably there is a step of creating a configuration table (18), which has a working list (24) of port indexes (20) with speeds associated with them for active ports (16). ing. There is preferably a step of accessing the table using the head pointer and tail pointer (22). If the working list (24) is changed, after creating the second list (26) of the port index (20) while maintaining the working list (24) and creating the second list (26), Preferably, there is a step of changing the head pointer and tail pointer (22) to indicate the second list (26) and making the second list (26) a working list (24).

  In the operation of the present invention, in the dynamic port update, the setting table (18) is used to control the active ports (16) and determine their speed. It contains a list of port indexes (20), with the speed associated with them. The table is accessed using the head and tail pointers (22) and can be changed during operation. Since the table is large enough, the second list (26) is created without affecting the working list (24). When the second list (26) is created, the pointer is changed to make it the working list (24).

  FIG. 3 shows the basic structure of the list, illustrating the switching from an application with 4 OC48 ports (16) to an application with 2 OC48 ports (16) and 5 GigE ports (16). ing. FIG. 4 shows the prior art that has been used. In the past, a series of modes were hard-coded by design to achieve the expected application. Previous methods have failed to support new applications such as 10 GigE ports. As the number of supported ports (16) and the types of ports (16) increase, the number of required modes increases rapidly. The above table is only one, and can support any number of ports (16) in any combination of modes, with only changes in software programming. A further feature of dynamic port update is that the configuration can be easily changed during chip operation. In the above example, port 0 and port 1 remain unaffected.

  The ultimate use of the application is a single network application module that supports multiple physical network connection types. The network connection type could be swapped while the module is installed on the network. For example, it could have been possible to build the two different configurations of FIG. 3 by connecting different network cards to one card containing the controller. The present invention provides cost and logistic savings because a single type of controller card can be mass produced instead of developing and manufacturing different control cards for each type of network connection. The memory stores setting information and is provided in the same ASIC as a controller.

  Although the present invention has been described in detail in the foregoing embodiments for purposes of illustration, such detailed description is solely for that purpose, and those skilled in the art are familiar with the foregoing description. In addition to what is described in the claims, it should be understood that modifications can be made without departing from the spirit and scope of the invention.

FIG. 1 is a schematic diagram of an apparatus of the present invention that shares resources. FIG. 2 is a schematic diagram of an apparatus of the present invention that dynamically updates a port. FIG. 3 shows a port time update list structure. FIG. 4 shows a prior art technique.

Explanation of symbols

(10) Equipment
(14) Controller
(16) Port
(18) Setting table
(20) Port index
(22) Head pointer and tail pointer
(24) Working list
(26) Second list
(100) Equipment
(110) Group
(115) Group index

Claims (14)

In a device that dynamically updates a port,
A plurality of ports, wherein each of the plurality of ports has a service;
A controller for selecting which of the plurality of ports to activate and a service of each active port;
During operation of the device, the controller changes the active port and the service of each active port without affecting the operation or stopping the operation.   The apparatus of claim 1, comprising a configuration table, the configuration table comprising a working list of port indexes with speeds associated with them for active ports.   The apparatus of claim 2, wherein the controller accesses the table using a head pointer and a tail pointer that are changed during operation.   The controller maintains the working list while creating a second list of port indexes when the working list is changed, and after the second list is created, the controller sets the head pointer and tail pointer to the 4. The apparatus of claim 3, wherein the apparatus is modified to show a second list, and the second list becomes a working list. In the method of dynamically updating the port,
Using the controller to select which of the plurality of ports to activate and the services that each active port has;
Changing the active port and the service of each active port using the controller without affecting the operation or stopping the operation during the operation of the device. How to prepare.   6. The method of claim 5, including the step of creating a configuration table, wherein the configuration table comprises a working list of port indexes for active ports with speeds associated with them.   7. The method of claim 6, comprising accessing the table using a head pointer and a tail pointer.   If the working list is changed, creating a second list of port indexes while maintaining the working list; after the second list is created, the head pointer and tail pointer are moved to the second list. And changing the second list to be a working list. In devices that share resources,
A plurality of groups in which the number can be set, each of the plurality of groups having a shareable size of the resource that can be set;
A controller that selects which group of the plurality of groups is to be activated and the shared size of the resource of each active group, without affecting the operation during the operation of the device Or a controller that changes the active group and the shared size of the resource of each active group without stopping the operation;
An apparatus comprising an active group and a configuration table having a working list of group indexes with portions of shared resources that they have.   The apparatus of claim 9, wherein the controller accesses the table using a head pointer and a tail pointer that are changed during operation.   The controller maintains the working list while creating a second list of group indexes when the working list is changed, and after the second list is created, the controller sets the head pointer and tail pointer to the head list and tail pointer. The apparatus of claim 10, wherein the apparatus is modified to show a second list, and the second list becomes a working list. In a way to share resources,
Selecting which group of the plurality of groups to be active and the shared size of the resource of each active group using the controller of the device;
Creating a configuration table with a working list of group indexes for the active groups with the shared resource part they have;
During the operation of the device, the active group and the shared size of the resource of each active group are changed using the controller without affecting the operation or without stopping the operation. A process comprising:   13. The method of claim 12, comprising accessing the table using a head pointer and a tail pointer.   If the working list is changed, creating a second list of group indexes while maintaining the working list; and after the second list is created, the head pointer and tail pointer are moved to the second list. 14. The method of claim 13, comprising: changing to show a list to make the second list a working list.

Images